This is a quote from the book "Bitcoin: A Peer-to-Peer Electronic Cash System" by Satoshi Nakamoto
...cker catching up diminishes exponentially as subsequent blocks are added.
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To compensate for increasing hardware speed and varying interest in running nodes over time, the proof-of-w
ork difficulty is determined by a moving average targeting an average number of blocks per hour. If they're generated too fast, the difficulty increases.
> The steps to run the network are as follows:
- New transactions are broadcast to all nodes.
- Each node collects new transactions into a block.
- Each node works...